@charset "UTF-8";
html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}


/* HTML5 display-role reset for older browsers */

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
    display: block;
}

body {
    line-height: 1;
}

ol,
ul {
    list-style: none;
}

blockquote,
q {
    quotes: none;
}

blockquote:before,
blockquote:after,
q:before,
q:after {
    content: '';
    content: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

html,
body {
    width: 100%;
    height: 100%;
    font-family: 'PingFangSC-Light', 'PingFang SC', 'STHeitiSC-Light', 'Helvetica-Light', 'Arial', 'sans-serif';
}

.lovetask {
    width: 1000px;
    height: 550px;
    margin: 0 auto;
    background-color: skyblue;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.love {
    width: 100px;
    height: 100px;
    background-color: red;
    position: relative;
    margin-top: 50px;
    transform: rotate(-45deg);
    animation-name: run;
    /* 设置动画的持续时间 */
    animation-duration: 1.5s;
    /* 设置动画的平滑速度 */
    animation-timing-function: ease-in-out;
    /* 设置动画结束后的元素位置  （backwards 默认值）*/
    animation-fill-mode: forwards;
    /* 设置动画执行次数 */
    animation-iteration-count: infinite;
    /* 设置动画的返回 */
    animation-direction: alternate;
}

@keyframes run {
    /* from {
        transform: translate(0);
    } */
    from {
        transform: translateY(30px) scale(1.3) rotate(-45deg);
        opacity: 1;
    }
    to {
        transform: translateY(200px) scale(0.5) rotate(-45deg);
        opacity: 0.1;
    }
}

.love::before {
    content: '';
    width: 100px;
    height: 100px;
    background-color: red;
    position: absolute;
    top: 0px;
    left: 50px;
    border-radius: 50%;
}

.love::after {
    content: '';
    width: 100px;
    height: 100px;
    background-color: red;
    position: absolute;
    top: -50px;
    left: 0;
    border-radius: 50%;
}

.shadow {
    width: 100px;
    height: 10px;
    background-color: rgba(0, 0, 0, 0.5);
    box-shadow: 0px 0px 20px 20px rgba(0, 0, 0, 0.5);
    border-radius: 70%;
    animation-name: shadow;
    /* 设置动画的持续时间 */
    animation-duration: 1.5s;
    /* 设置动画的平滑速度 */
    animation-timing-function: ease-in-out;
    /* 设置动画结束后的元素位置  （backwards 默认值）*/
    animation-fill-mode: forwards;
    /* 设置动画执行次数 */
    animation-iteration-count: infinite;
    /* 设置动画的返回 */
    animation-direction: alternate;
}

@keyframes shadow {
    0% {
        transform: translateY(80px) scale(0.8);
        opacity: 0;
    }
    50% {
        transform: translateY(80px) scale(1.6);
        opacity: 0;
    }
    100% {
        transform: translateY(80px) scale(0.8);
        opacity: 1;
    }
}

.carousel {
    width: 200px;
    height: 50px;
    overflow: hidden;
}

.carousel ul {
    width: 200px;
    height: 50px;
    position: relative;
    animation-name: li;
    animation-duration: 5s;
    animation-timing-function: ease-in-out;
    animation-iteration-count: infinite;
}

ul:hover {
    animation-play-state: paused;
}

.carousel ul .sllide {
    width: 100%;
    height: 100%;
    position: absolute;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
}

.sllide:nth-of-type(1) {
    left: 0px;
    background-color: red;
}

.sllide:nth-of-type(2) {
    left: 200px;
    background-color: yellow;
}

.sllide:nth-of-type(3) {
    left: 400px;
    background-color: blue;
}

@keyframes li {
    0% {
        left: 0px;
    }
    16% {
        left: 0px;
    }
    32% {
        left: -200px;
    }
    48% {
        left: -200px;
    }
    64% {
        left: -400px;
    }
    80% {
        left: -400px;
    }
    96% {
        left: 0px;
    }
    100% {
        left: 0px;
    }
}

.content {
    width: 300px;
    height: 300px;
    margin: 0 auto;
    margin-top: 50px;
}

.content img {
    width: 100%;
    height: 100%;
}

.background {
    width: 300px;
    height: 300px;
    margin-top: 50px;
    background-image: url(../qb.jpg);
    background-size: 100% 100%;
    position: relative;
    left: 50%;
    transform: translate(-50%, 0px);
}